Window frame



May 15, 1934- H. s. RICHARDS f 1,958,680

WINDOW FRAME fa 5 am May 15, 1934. H. 5, RlCHARDs l 1,958,680

WINDOW FRAME Filed April 5, 1933 2 Sheets-Sheet 2 Sme/Miou Patented May 15, 1934 UNITED STATES PATENT OFFICE `WIND 0W FRAME Application April -5, 1933, Serial No. 664,638

5 Claims.

This invention relates to building construction and more particularly to a novel form of window frame for use in connection therewith.

The object of the invention is to provide a window frame of strong and durable construction, the several parts of which may be readily assembled to produce a pre-formed unit for insertion in the walls of either wood or masonry structures.

A further object of the invention is to provide a window frame having a novel form of joint connecting the sill and side jarnbs, whereby the frame elements may be conveniently intertted and a water-tight joint produced.

A further object is to so construct the window frame that a marginal seating groove is formed between the outside casing and blind stop and between said blind stop and sill to accommodate a metal or paper flashing strip.

A further object is to reinforce and strengthen the joint between the side jambs and head blind stop by the provision of transverse spacing blocks, which blocks also serve to define weight-receiving pockets and form nailing strips for a baclc jamb and inside casing when the frame is used in masonry walls.

A further object is to secure the parting strip of the window frame to the sill thereof in such a manner as to obvate the employment of nails and similar fastening devices so as to permit said parting strip to be readily removed for repairs or replacement when necessary.

A still further object of the invention is generally to improve this class of devices so as to increase their utility, durability andeinciency.

In the accompanying drawings, forming a part of this specification, in which like numerals of reference indicate corresponding parts in all of the figures of the drawings,

Figure 1 is an elevation of a portion of a window frame constructed in accordance with the present invention and looking at the outside thereof,

Figure 2 is a vertical sectional view taken on the line 2--2 of Figure 1,

Figure 3 is a transverse sectional view taken on the line 3 3 of Figure 1,

Figure 4 is a perspective View of a portion of the window frame looking at the inside thereof,

Figure 5 is a detail perspective view of a portion of the sill and the lower end of the adjacent side j amb showing the formation of the joint between the parts,

Figure 6 is a detail vertical sectional view, partly in elevation, showing the parts illustrated in Figure 5 assembled, and

Figure 7 is an end elevation of the vlower portion of Figure 4.

The improved window frame, Yforming the subject matter of the present invention, comprises a sill 5 having side members, or jambe, 6 secured thereto and connected at their upper ends by a transverse member or head jamb 7, the opposite ends of the head jamb 7 being mortised in the side jambs, as indicated at 8. Secured to the side jambs 6 and head jamb '7, at the outside of the frame, is a blind stop 9, the marginal edges of which preferably project laterally beyond the members 6 and 7 to form a circumferential flange, as shown, and secured to the outer face of the blind stop is a strip 10 constituting an ornamental outer casing for the window frame. The side jambs 6 are formed with spaced elongated openings 11 to permit the passage of the usual weight cords and arranged directly above the openings 1l and secured to the outer faces of the side jambs 6, opposite the mortises 8, are reinforcing blocks 12, which blocks are also secured to the members forming the blind stop 9 and serve to reinforce and strengthen the frame at its weak est point. The spacing blocks 12 extend transversely of the side jambs 6 and project laterally a distance equal to the projecting ends 13 or" the sill 5 so that when the frame is inserted into the wall of a building, the projecting ends 13 of the sill and the blocks 12 will form an intermediate pocket or chamber to accommodate the usual sash weights of the window. The blocks 12, in addition to reinforcing and strengthening the upper end of the frame and blind stop, also form nailing strips for a back jamb' and inside casing when the frame is used in masonry walls.

The inner face of the outer casing 10 is cut away, opposite the blind stop 9, to form a marginal, substantially Vshaped, groove 14 which also extends through the sill 5, as best shown in Figure 'l of the drawings, and forms a seat for a strip of paper or metal ashing so as to prevent leakage between the parts and thus render the frame water-tight. The sill 5 is preferably in clined downwardly, as shown, and formed in the upper surface of the sill, at each end thereof, is a transverse groove 15 adapted to receive a rabbet 16 on the end of the adjacent side jamb 6. The walls of each groove 15, at the inner end of the sill, are cut away to form an opening, or mortise, 17 extending entirely through the sill and which receives a tenon 18 depending from the end of the side jamb 6. Each tenon 18 is substantially L-shaped in construction to form an enlarged head 19 defining a shoulder 20 which bears againsty the lower face of the sill and serves to form a tight joint between the parts.

The window frame is provided with the usual parting strip 21 and in order to permit the ready' removal and replacement of said parting strip, the upper face of the sill 5 is provided with a socket, or depression, 22 adapted to receive the lower squared end 23 of said parting strip, as best shown in Figure 6 of the drawings. The sockets 22 communicate with the grooves 15 and are disposed in alinement with strip-receiving seats 24 in the side jambs so that when the sill and jamb members are assembled the lower ends of the parting strip may be readily inserted in the sockets 22, or withdrawn therefrom, when it is desired to effect any necessary repairs to the window sashes, or to replace the parting strip. By having the parting strip fitting in the sockets 22 in this manner, the employment of nails and siniilar fastening devices is entirely dispensed with.

In assembling the frame, the jambe 6 are positioned on the sill 5 with the rabbets 16 seated in the grooves i5 and said jambe moved transversely of the sill until the parting strip seats 24 register with the sockets 22 and in which position the necks 18 of the tenons will fit within the mortises 17 and the shoulders 2G of the tenons will bear against the bottom of the sill, as best shown in Figure i of the drawings. When the parts are assembled in this manner, they may be additionally secured by nails, or similar fastening devices 25, if desired.

The tenons at the back edges of the side jambs insure the utmost strength and make is impossible for the sill to ever pull away from the jarnbs.

Particular attention is directed to the location and formation of 'the reinforcing blocks 12. These blocks not only reinforce the frame at its weakest point and simplify seating the frame in a building but also automatically take care of the spacing studs so as to insure the proper weight-receiving pockets. When a box frame for masonry is wanted, the blocks form naiiing strips for the back jamb and inside casing so that by simply nailing two pieces of board to the blocks and the extension of the sill a complete box frame is produced. It will, of course, be understood that the window frames may be made in different sizes and shapes and constructed of any suitable or desirable material without departing from the spirit of the invention.

Having thus described the invention, what is claimed is:

1. A window frame comprising connected head and side jambs, a sill secured yto the side jambe, a blind stop secured to the head and side jambs, and a casing secured to the outer face of the blind stop, the marginal edge of the casing at said blind stop being formed with a substantially V-shaped groove extending through the sill and forming a seat for a ashing strip.

2. A window frame comprising connected head and side jambe, a sill secured to the side jambs and projecting longitudinally beyond said side jambs, a blind stop secured to the head and side jambs, reinforcing blocks secured to the outer faces of the side jarnbs and inner face of the blind stop opposite the head jamb, and a casing secured to the outer faceof the blind stop and having a marginal groove formed therein opposite the blind stop and extending through the sill at the projecting ends thereof to permit the insertion of a flashing strip.

3. A window frame comprising a sill, side jambs secured to the sill, a head jamb connecting the upper ends of the side jambs and mortised therein, a blind stop secured to the head and side jambs and projecting laterally beyond said jambs, reinforcing blocks secured to the outer faces of the side jambs and extending transversely thereof opposite the mortises and having their outer ends abutting against and secured tothe inner face cf the adjacent projecting end of the blind stop, a casing secured to the outer face of the blind stop and having its marginal edge adjacent the outer face of the blind stop recessed to form a seating groove extending entirely through the sill to permit the insertion of a flashing strip.

fi. A window frame comprising a sill, side jambs secured to the sill and provided with cord-receiving openings, a head jamb connecting the upper ends of the side jambs and mortised theres in, a blind stop secured tothe head and side jambs, and reinforcing blocks secured to the outer faces of the side jambs opposite the mortises and to the inner face of the blind stop, said reinforcing blocks defining unobstructed weightreceiving pockets extending the entire height of the frame and communicating with the cc-rdreceiving openings and constituting nailing strips to permit the attachment of a back jamb.

5. A window frame comprising a sill, side jamlos secured to the sill and provided with cord-re ceiving openings, a head jamb connected to the upper ends of the side jambs and mortised therein, the opposite ends of the sill being projected longitudinally beyond said side jarnbs, a blind stop secured to the head and side jambs, and reinforcing blocks of substantially the same width as the projecting ends of the sill secured to the outer faces of the side jambs opposite the mortises and to said blind stop, said reinforcing blocks and the projecting ends of the sill defining unobstructed weight-receiving pockets extending the entire height of the frame and communicating with the cord-receiving openings and constituting nailing strips to permit the attachment of a back jamb.

HENRY S. RICHARDS. 

